Nested ternary throws exception

[bjn]

The formula
1 == 2 ? 3 == 4 ? 1 : 0 : 0

throws exception

System.NotSupportedException : Failed to evaluate expression for '1 == 2 ? 3 == 4 ? 1 : 0 : 0'
----> CodingSeb.ExpressionEvaluator.ExpressionEvaluatorSyntaxErrorException : Invalid character [58::]

This works with paranthesis 1 == 2 ? (3 == 4 ? 1 : 0) : 0.